Lubricator oil control valve



Sept. 7, 1943. B: FOLKE I 2,329,040

LUBRICATOR OIL CONTROL VALVE Filed May 8, 1942 2 Sheets-Sheet l BEA/67' E. FOL/d5 INVENTOR ATTORNEY Sept. 7, .1943. B, E. FOLKE 2,329,040

LUBRICATOR OIL CONTROL VALVE -F iled May 8, 1942 2 Sheets-Sheet 2 Fig. 2

BENGT E. FOL/6E INVENTOR Maw/m ATTORNEY Patented Sept. 7, 1943 o 4 3 It is one of the objects of the invention'to pro- "non-return check valve 43 held against its seat got-supply :under pressure, such as a mechanical through passage 45. A r lubricator, ior instance, will be 'in jected i'nto the The operation of the control valve as fol deviceto be lubricated at proper intervals"-t lows."

i {effectmo'st efiicientlubrication.

t mea'ns to discharge oil delivered nem-a mechani- 4 entersthe oil control valve 16 at l5, passes oal lub'ricator to, fof'examp'le, a steam cylinder, through an' oil passage 41 and fillsa central oil thecylinder. I

or control valve which will discharge on into: a lifted fromits seatand oil will be dischargedinto steam: engine 'atregular intervalsand whichwill a passage "49 in the valve seat 21, exerting pres- Q-prevent admission of enduring the exhau' part sure on an end55 of the valve 389 i gq the t k i f e113 if In a manner well known in the art j-the pres f at Still further objects will become apparentiin sure inf-steam cylinder l8 iiuctuates iromamaxithe following specification and in fthe drawings mum when steam" is a'dmittedinto the cylinder showing a preferred'embodime'ntof the invenby means of the piston valve |9,-to a minimi m,

tion in which ;two control valves in'c'onnection with a mechani- -atio ns occur in each endofthe steam cylinder 4 "Fig, 2shows a longitudinal section through the and a pasasge 5| to a spaceorchamber 5'2above .ieontrolvalve at an enlarged scale. 5

t FLike characters of reference} denote similar a topermit-the pressurefluctuations 'occurringin Sparta tnroughout the several viewsand theiola the cylinder to vbetransmitted to chamber 52 ilowing specification. I 16f almost instantaneously. When the pressure ;in c R'eferring to Fig. 1, shows a mechanical the cylinder H3 is approaching its maximum, the lubricatonoperated byai drive lever H, connected 'steam pressure on; surface 53 of the piston 31in Kyoto afsuitable movin'g memben l2. ilLubricant is addition to the oil pressure on surface 50 of valve supplied through pumping units l3 and pipe lines extension 38 movesvalve 38 away from seat 21,

I4 to oil inlets l5 of an oil control valve I6, 10- permitting a smallamount of oil to enter cham- I8. A locomotive piston valve is indicated more the piston 37 is gradually being equalized by the 5 t or less diagrammatically at [9 and a main steam pressure leaking past the annular clearance space piston at l9a.

' Steam from a suitable supply as at 20, isadside of the piston 31, the valve 38 will again be mitted through pipes 2| to steam inlets 22 of moved against seat 21 by means of the spring 39, control valves |6. As the pressure in cylinder |8 begins to drop of a body 23 having an oil inlet I5, a steam inlet trol valve chamber 52 communicated through 22and a discharge connection 24. 26 is a valve passage 5| will likewise drop, thus relieving the by a regulating spring 30 acting against abutthe chamber 52 expands with the decreasing presfor regulating the tension of spring 33. The valve valve 38 into chamber 52 will be discharged 25 is guided in a diaphragm nut 33, supported by through passage 5| into cylinder l8.

4 place by a diaphragm ring 35 and'a spring cap 36. from chamben52 into cylinder |8 as soon as oil of a spring 35 held in position by a spring cap 40. under-substantially boiler pressure from a source LnBaroa'roa' on. ooivrmoh V-ALYE h J P Bengt Fol lge; lamaronec k N Y., assignor to Nathan 1Manufacturing Company, New York,

N. corporation of rare; v e e e i Anmicanoa May slan seminal 442,203 r iola i s'. (Crist -561 vide means whereby oil delivered from a'sour'ce '44 by means of a spring 45 prevents return new 3 Oil discharged from the mechanical lubricate! More particularly; "it is a'naobject to provide through one of the pumping units ls-end oil line duringthe period when steam is admitted-into W cavity 48. After a'pres surehasbeen-built-up V i l l a under thediaphragr'n 34 sufii'cient-toovercomthe Another object is to provide a terminal check tension of spring 30, valve member 25 will be i 20 when steam is exhaustedto the 'atmosphere also Fig l is a general view of the tapplicati'o-nuof' my action of the valve l9. These pressure fiuctu- ,calilubricatoronasteam locomotivfe cylinderyand and are communicated through connection 24 cated in the cylinder heads I] of a steam cylinder ber 52'. As the pressure acting on surface 53 of r 54 around the piston and acting on the opposite Referring to Fig. 2, the control valve consists during the expansion stroke, the pressurein conmember operating against a valve seat 21 and pressure on surface 53 of the piston 31 and per- 4 held against an abutment 28 by means of spring l mitting valve 38 to be held firmly against seat 21 29. The valve 23 is forced towards its seat 2"! during the exhaust stroke. When the steam in ment 28. A screw 3| and a nut 32areprovided sure in cylinder l8, oil previously injected around a diaphragm 34. The diaphragm 34 is held in In order to assure immediate discharge of oil Apiston 31 is provided with a valve extension has been discharged into chamber 52, an atomiz- 33 and is urged towards valve seat 21 by means ing steam nozzle 4| hasbeenprovided. Steam,

Asteam nozzle 4| is screwed into adapter 42 55 20, conducted through pipe 2| enters connection and is discharged at high velocity through the I T atomizing nozzle 4|. The boiler pressure being at through the steam nozzle M is not sufi'zlcient to increase the pressure in chamber 52 to any measurable degree and the steam entering from said nozzle does not in any way'affect the pressure fluctuations in chamber 52. Only a sufiicient amount of steam enters through said steam nozzle to assure immediate dischargeof oil into the V passage 5t and hence to the steam cylinder 18. e In this manner, oil will have been discharged from chamber 52 into steam cylinder l8 during the high pressure interval, and the oil discharge will be completed before the end of the expansion stroke and the beginning'of the exhaust stroke of the piston Na, and thus no oil will be discharged into the cylinder during the exhaust part of the stroke. 7 During the exhaust part of the stroke extension .38 of piston 31 is held firmly against seat 21 Qclosing passage 49. At this time'the'tension of spring 39 issupplemented by the pressure onthe spring side of piston 37, which pressure entered around the clearancev space 54 during the maximum pressure period as explained above.

It will be understood that, when the locomotive drifting and no steam used in the cylinders, the oil pressure in passage 49 acting on the surface 50 of valve 38 will open valve 38 againstspring 39 without the aid of steam pressure.

-; It is furthermore apparent'that if the valve member 26 is opened while valve 38 is held to'its seat, the valve member 26 will remain open until .;valve 38 opens and relieves the pressure, at which time valve member ZSwill be'seated, as the pressure drops in the oil space below diaphragm 34. W-hile I have explained the operation of the oil -control valve in connection witha steam engine,

it is obvious that the same valve may be used with .an air, engine,- infact any type of engine in which the cylinder pressure is subject .to periodic fluctuations, v p It is understood that various changes in form,

e p r 2,329,040 122 and passage 46, lifts ball check 43 from its seat proportions and minor details of construction may be resorted to without departing from the principles or sacrificing any of the advantages of the invention as defined in the appended claims,

What I claim as new, is: 1. An oil control valve having an inlet for oil under pressure, a primary chamber having a valved outlet, a secondary chamber having a valved inlet in communication with said valved 1 outlet and a main outlet to the cylinder of an engine, and means in said secondary chamber to open momentarily said valved inlet during the pressurestroke in said cylinder and to keep said valved inlet closed during the exhaust stroke in said cylinder.

2. An oil control valve having an inlet for oil under pressure, a primary chamber having a valved outlet, a secondary chamber having a valved inlet in communication with said valved outlet and a main outlet to the cylinder of an engine, means in said secondary chamber to open momentarily said valved inlet during the pressure stroke in said cylinder and to keep said valved inlet closed during the exhaust stroke in said cylinder, and anatomizing jet dischargingv into said secondary chamber to accelerate the ejection of oil from said secondary chamber.

3. An oil control valve having an inlet foroil under pressure, a primary chamber having a valved. outlet, a secondary chamber having an inlet port in communication with said valved outlet and a main outlet to the cylinder of an engine,

and a pistonin said secondary chamber having means to close said inlet port, said piston being adapted to open momentarily said inlet port during the pressure stroke in said cylinder and to keep said inlet port closed during the exhaus stroke in said cylinder. v

4. An oil control valve having an inlet for oil under pressure, a primary chamber having a valved outlet, a secondary chamber havin an inlet port in communication with said valved outlet and a main outlet to thecylinder of an engine, a piston in said secondary chamber having means to close said inlet port, said piston being adapted,

to open momentarily said inlet port during the pressure stroke in said cylinder and to keep said inlet port closed during th exhaust stroke in said cylinder, and an atomizing jet discharging into said secondary. chamber to accelerat the ejection of oil from said secondary chamber.

a BENGT E.-'FOLKE. 

